Structure of automatic suspender reeling device

ABSTRACT

A structure of an automatic suspender reeling device, and especially a device of which an engaging member and a ratchet wheel are mutually engaged with or separated from each other to control pulling out or retracting of a wound suspender. The reeling device is comprised of a receiving box, a cover, a ratchet wheel and an engaging member. The receiving box has a receiving space therein; one side of the receiving space is an opened side to place in the ratchet wheel and the engaging member. An engaging portion on the bottom of the engaging member engages the teeth of the ratchet wheel, a suspender is wound onto the ratchet wheel, one end of the suspender extends through a through hole on the engaging member and out of the receiving box; then a cover is put on the opened side of the receiving space to complete the reeling device. The suspender can be fast pulled out or retracted into the reeling device to obtain an object of adjusting the length of extending of the suspender.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention is related to the structure of an automatic suspender reeling device, and especially to such a device of which an engaging member and a ratchet wheel are mutually engaged with or separated from each other to control pulling out or retracting of a wound suspender, thereby, an object of adjusting the length of extending of the suspender is obtained. A backpack or a handbag is provided on both lateral side thereof with such a reeling device, by operation of free winding of the reeling device for adjustment to get a suitable length of the suspender, the suspender can be extended for shouldering, or shortened for hand carrying, the backpack or the handbag can thus be carried easily.

[0003] 2. Description of the Prior Art

[0004] Various carrying tools such as bags, packs etc. sold in the markets are provided with suspenders for shouldering by users; in using the suspenders, they need to be adjusted to get suitable lengths in pursuance of the factors such as sizes of the users or the bags or packs to suit shouldering by the users in a convenient way. Suspender used on various bags or packs are all controlled by engagement of buckles each in the shape of “θ”, such a “θ” shaped buckle “A ” (as shown in FIGS. 1 and 1A) has a middle rod “B” connected with one end of a suspender 10, the other end of the suspender 10 is extended through a ring “C” of a bag, and then through the “θ” shaped buckle “A”. The aforesaid other end of the suspender 10 is fixedly connected to another ring “C”. In this arrangement, when the length of the suspender 10 is adjusted, the parts of the suspender 10 on the left and the right sides of the “θ” shaped buckle “A” must be pulled to displace the “θ” shaped buckle “A” on the suspender 10, and the length of the suspender 10 can be adjusted. In such mode of adjustment, it is difficult for adjusting, and some trouble may be induced, they are:

[0005] 1. The “θ” shaped buckle “A” is directly provided on the suspender 10, by pulling the suspender 10, the “θ” shaped buckle “A” is tightly sustained on the suspender 10, displacement or adjustment of the “θ” shaped buckle “A” is quite difficult.

[0006] 2. When the suspender 10 is extended through the “θ” shaped buckle “A”, it always is torn by hooking of the “θ” shaped buckle “A”, thereby, the area to be adjusted always creates a phenomenon of tearing off of threads, and breakage of the suspender 10 may happen when the situation is serious. And when the suspender 10 is not used temporarily, it can not be withdrawn for storing, but can only be randomly placed on the bag, hence the suspender 10 may get some thing pulled down or may be tangled on one's body, and accident may occur.

[0007] The above stated problems created in using the suspender presently makes bags inconvenient for carrying, and improvement is wanted.

SUMMARY OF THE INVENTION

[0008] The main object of the present invention is to establish the structure of the automatic reeling device by extending a suspender through an engaging member and then fixing it on a ratchet wheel, and by mounting the engaging member and the ratchet wheel together in a box. The reeling device can now be installed on any bag to adjust the length of extending of the suspender fast and conveniently.

[0009] The secondary object of the present invention is to provide an engaging portion on the bottom of the engaging member in the reeling device for engaging with the teeth of the ratchet wheel, by engagement of the engaging member with the ratchet wheel, the suspender can extend through the engaging member to be pulled out or retracted.

[0010] Another object of the present invention is to make the engaging member of the reeling device movable upwardly to render the engaging portion on the bottom of the engaging member move away from the teeth of the ratchet wheel in order that a helix spring in the ratchet wheel winds back to reel the suspender back onto the ratchet wheel.

[0011] A further object of the present invention is to provide a recess on the engaging member, and to provide a protrusion on the reeling device in corresponding to the recess, by engaging of the protrusion in the recess, the effect of fixing of the engaging member on the reeling device can be enhanced, the engaging member is not subjected to swaying or displacement.

[0012] The present invention will be apparent after reading the detailed description of the preferred embodiment thereof in reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013]FIG. 1 is a schematic perspective view of the structure of a conventional “θ” shaped buckle;

[0014]FIG. 1A is a sectional view of the structure of the conventional “θ” shaped buckle;

[0015]FIG. 2 is an analytic perspective view of the structure of the present invention;

[0016]FIG. 3 is an analytic perspective view showing the structure of the engaging member and a ratchet wheel of the present invention;

[0017]FIG. 4 is a sectional view of the structure of the present invention;

[0018]FIG. 5 is an action schematic view showing a suspender of the present invention is pulled outwardly;

[0019]FIG. 6 is an action schematic view showing the suspender of the present invention is wound back;

[0020]FIG. 7 is an analytic perspective view showing another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0021] Referring to FIGS. 2, 3 and 4, the reeling device 20 for the suspender 10 of the present invention is comprised of a receiving box 30, a cover 40, a ratchet wheel 50 and an engaging member 60, wherein:

[0022] The receiving box 30 has a receiving space 31 therein; a slit 32 is left on a lateral upper end of the receiving space 31 and is provided at an end thereof with an engaging hole 38. An inner wall 33 in the receiving space 31 is provided with a pivotally connecting annulus 34 with a pivotally connecting hole 35 therein, the opposite side of the inner wall 33 is an opened side 36 with a plurality of securing holes 37 on the peripheral rim thereof.

[0023] The cover 40 covers the opened side 36 of the receiving box 30, and is provided on the inner surface 41 thereof with an engaging hole 45, a pivotally connecting stub 42 and a plurality of engaging protrusions 43, the pivotally connecting stub 42 has therein a pivotally connecting round hole 44. And by engaging of the engaging protrusions 43 into the securing holes 37 on the opened side 36, the cover 40 can cover the opened side 36.

[0024] The ratchet wheel 50 is provided therein with a helix spring 51 and a central wheel axle 52, it is mounted in the receiving space 31 of the receiving box 30, one end of the wheel axle 52 is embedded in the pivotally connecting hole 35 of the pivotally connecting annulus 34 on the inner wall 33 in the receiving space 31. The other end of the wheel axle 52 is engaged into the pivotally connecting round hole 44 on the pivotally connecting stub 42 of the cover 40, so that the ratchet wheel 50 can rotate in the receiving space 31. The ratchet wheel 50 is provided on the upper portion thereof with teeth 53; the suspender 10 is wound onto the wheel axle 52.

[0025] The engaging member 60 is pivotally provided at the slit 32 on a lateral upper end of the receiving space 31 of the receiving box 30, and is provided on both ends thereof with an engaging stub 61 respectively engaged into the engaging hole 38 on one side of the slit 32 and into the engaging hole 45 of the cover 40. The engaging member 60 is provided with a through hole 62 for extending of the suspender 10 on the ratchet wheel 50 therethrough, and is provided on the bottom of one side thereof with an engaging portion 63 for engaging with the teeth 53 of the ratchet wheel 50.

[0026] By composing the reeling device 20 from the abovementioned members, the ratchet wheel 50 and the engaging member 60 are together pivotally mounted in the receiving space 31 or the receiving box 30, the engaging portion 63 of the engaging member 60 engages the teeth 53 of the ratchet wheel 50. After the suspender 10 wound on the ratchet wheel 50 is extended through the through hole 62 of the engaging member 60, it can be pulled out of the box 30; during pulling the suspender 10, the ratchet wheel 50 is rotated thereby, the teeth 53 of the ratchet wheel 50 are swiveled accordingly without hindering by the engaging portion 63 of the engaging member 60 (as shown in FIG. 5); the suspender 10 can be pulled out for a suitable length smoothly.

[0027] Referring to FIG. 6, when in retracting the suspender 10, the engaging member 60 of the reeling device 20 shall be raised and the engaging portion 63 of the engaging member 60 will push the teeth 53 being engaged and is moved down and rightwards and leaves the teeth 53, then the ratchet wheel 50 is not restrained, now the force of the helix spring 51 rotates the ratchet wheel 50 in the contrary direction to reel the suspender 10 back onto the ratchet wheel 50, so that the suspender 10 is reeled fast into the box 30. During the reeling device 20 reels back the suspender 10, the engaging member 60 is raised; and when the suspender 10 is reeled to a suitable length, the engaging member 60 is pushed back to its original position to engage the engaging portion 63 of the engaging member 60 with the teeth 53 of the ratchet wheel 50 (as shown in FIG. 5). Now, the suspender 10 will not be retracted into the reeling device 20 even if the ratchet wheel 50 is stopped rotating, and positioning of the suspender 10 can be obtained.

[0028] Referring to FIG. 7, the reeling device 20 of the present invention is provided on a lateral side of the engaging member 60 with a recess 64, while the cover 40 is provided with a protrusion 46 in corresponding to the recess 64; by engaging of the protrusion 46 of the cover 40 in the recess 64 of the engaging member 60, the engaging member 60 is fixed and is not subjected to swaying or displacement by a small force. However, when the suspender 10 is pulled out of or retraced into the reeling device 20, a mild force is adequate to move the engaging member 60 to separate the protrusion 46 from the recess 64 temporarily.

[0029] Accordingly, the present invention has the ratchet wheel and the engaging member provided in the reeling device engaged with each other to allow the suspender to be pulled out or reeled in to adjust the length of the suspender fast and easily, and the bag can be shouldered on one's person once the suspender is adjusted to a suitable length; it is really an invention with practicability. 

Having thus described my invention, what I claim as new and desire to be secured by Letters Patent of the United States are:
 1. A structure of an automatic suspender reeling device, said structure comprises a receiving box, a cover, a ratchet wheel and an engaging member, wherein: said receiving box has a receiving space therein, a slit is left on a lateral upper end of said receiving space; an inner wall in said receiving space is provided with a pivotally connecting hole, the opposite side of said inner wall is an opened side; said cover covers said opened side of said receiving box; said ratchet wheel is mounted in said receiving space of said receiving box to be rotatable in said receiving space, and is provided therein with a helix spring and a wheel axle at the center thereof, a suspender is wound on said wheel axle; said engaging member is pivotally provided at said slit on said lateral upper end of said receiving space of said receiving box, and is provided therein with a through hole for extending of said suspender on said ratchet wheel therethrough, and is provided on the bottom of one side thereof with an engaging portion for engaging with teeth of said ratchet wheel; by composing said reeling device from said members, said ratchet wheel and said engaging member are together pivotally mounted in said receiving space of said receiving box, said engaging portion of said engaging member engages said teeth of said ratchet wheel; after said suspender wound on said ratchet wheel is extended through said through hole of said engaging member, said suspender is pulled out of said box; during pulling said suspender, said ratchet wheel is rotated thereby, said teeth of said ratchet wheel are swiveled accordingly without hindering by said engaging portion of said engaging member; said suspender thus is pulled out for a suitable length smoothly.
 2. A structure of an automatic suspender reeling device as in claim 1, wherein, said reeling device is provided on a lateral side of said engaging member with a recess, while said cover is provided with a protrusion in corresponding to said recess; by engaging of said protrusion of said cover in said recess of said engaging member, said engaging member is fixed and is not subjected to swaying or displacement by a small force; however, when said suspender is pulled out of or retraced into said reeling device, a mild force is adequate to move said engaging member to separate said protrusion from said recess temporarily.
 3. A structure of an automatic suspender reeling device as in claim 1, wherein, said helix spring provided in said ratchet wheel is connected on one end thereof to the inner wall of said ratchet wheel, and connected on the other end thereof fixedly to said wheel axle at the center of said ratchet wheel; when said suspender wound on said wheel axle is pulled, said wheel axle is rotated to wind said helix spring, and engagement of said engaging portion on said engaging member with said teeth of said ratchet wheel makes said ratchet wheel restrained from moving; on removing of said engaging portion on said engaging member from said teeth of said ratchet wheel, said helix spring in said ratchet wheel is released to wind in a contrary direction to rotate said wheel axle, thereby said suspender is reeled back onto said wheel axle. 